branch switchboard
短語詞組
- private branch exchange switchboard 內(nèi)部通信小交換機(jī);專用小交換機(jī)
- branch h type switchboard 分立型配電盤
- private branch switchboard detail 專用交換臺(tái)
- private branch switchboard 專用交換臺(tái);用戶交換臺(tái);用戶總機(jī)
- The Branch Switchboard 主干交換機(jī) 返回 branch switchboard